IMT cellular networks - Harmonised Standard for access to radio spectrum - Part 18: E-UTRA, UTRA and GSM/EDGE Multi-Standard Radio (MSR) Base Station (BS)

The present document applies to the following equipment types:
• Multi-Standard Radio capable Base stations (E-UTRA, UTRA, GSM/EDGE, NB-IoT).
These radio equipment types are capable of operating in all or any part of the frequency bands given in table 1-1.      NOTE 1: For BS capable of multi-band operation, the supported operating bands may belong to different Band
Categories.
The present document covers conducted requirements for multi-RAT capable E-UTRA, UTRA and GSM/EDGE MSR
Base Stations for 3GPP™ Release 9, 10, 11, 12 and 13. This includes the requirements for E UTRA Base Station
operating bands and E-UTRA CA operating bands from 3GPP Release 14.
NOTE 2: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU [i.1] is given in annex A.

Celična omrežja IMT - Harmonizirani standard za dostop do radijskega spektra - 18. del: Večstandardna (E-UTRA, UTRA in GSM/EDGE) radijska bazna postaja

Ta dokument se uporablja za opremo naslednjih vrst:
• bazne postaje, ki podpirajo Multi-Standard Radio (E-UTRA, UTRA, GSM/EDGE, NB-IoT).
Radijska oprema teh vrst lahko deluje v vseh delih frekvenčnih pasov iz preglednice 1-1.      
OPOMBA 1: Pri baznih postajah, ki lahko delujejo v več pasovih, lahko podprti operativni pasovi spadajo v različne
kategorije pasov. Ta dokument zajema zahteve za izvedene bazne postaje E-UTRA, UTRA in GSM/EDGE MSR z multi tehnologijo radijskega dostopa za izdaje 9, 10, 11, 12 in 13 standarda 3GPP™. To vključuje zahteve za pasove bazne postaje E-UTRA in pasove bazne postaje E-UTRA CA iz izdaje 14 standarda 3GPP.
OPOMBA 2: Razmerje med tem dokumentom in bistvenimi zahtevami člena 3.2 Direktive 2014/53/EU [i.1] je podano v dodatku A.

General Information

Status
Published
Public Enquiry End Date
13-Mar-2018
Publication Date
09-Oct-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
07-Oct-2019
Due Date
12-Dec-2019
Completion Date
10-Oct-2019

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ETSI EN 301 908-18 V13.1.1 (2019-09) - IMT cellular networks; Harmonised Standard for access to radio spectrum; Part 18: E-UTRA, UTRA and GSM/EDGE Multi-Standard Radio (MSR) Base Station (BS)
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ETSI EN 301 908-18 V13.1.0 (2019-07) - IMT cellular networks; Harmonised Standard for access to radio spectrum; Part 18: E-UTRA, UTRA and GSM/EDGE Multi-Standard Radio (MSR) Base Station (BS)
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ETSI EN 301 908-18 V13.0.1 (2017-12) - IMT cellular networks; Harmonised Standard for access to radio spectrum; Part 18: E-UTRA, UTRA and GSM/EDGE Multi-Standard Radio (MSR) Base Station (BS)
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ETSI EN 301 908-18 V13.1.1 (2019-09)






HARMONISED EUROPEAN STANDARD
IMT cellular networks;
Harmonised Standard for access to radio spectrum;
Part 18: E-UTRA, UTRA and GSM/EDGE
Multi-Standard Radio (MSR) Base Station (BS)

---------------------- Page: 1 ----------------------
2 ETSI EN 301 908-18 V13.1.1 (2019-09)



Reference
REN/MSG-TFES-13-18
Keywords
3G, 3GPP, cellular, digital, EDGE, E-UTRA,
GSM, IMT, IMT-2000, IMT-Advanced, LTE,
mobile, MSR, radio, regulation, UMTS, UTRA,
WCDMA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2019.
All rights reserved.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and
of the oneM2M Partners.
®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 ETSI EN 301 908-18 V13.1.1 (2019-09)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 10
3.1 Terms . 10
3.2 Symbols . 13
3.3 Abbreviations . 14
4 Technical requirements specifications . 15
4.1 Environmental profile . 15
4.2 Conformance requirements . 15
4.2.1 Introduction. 15
4.2.2 Operating band unwanted emissions . 21
4.2.2.1 Definition . 21
4.2.2.2 Limits . 21
4.2.2.2.1 Limits for Band Categories 1 and 3 . 21
4.2.2.2.2 Limits for Band Category 2 . 27
4.2.2.2.3 Limits for GSM/EDGE single-RAT operation . 32
4.2.2.2.4 Additional limits for protection of DTT . 33
4.2.2.2.5 Limits for co-existence with services in adjacent frequency bands . 33
4.2.2.2.6 Additional limits for operation in band 32 . 33
4.2.2.3 Conformance . 33
4.2.3 Adjacent Channel Leakage power Ratio (ACLR) . 33
4.2.3.1 Definition . 33
4.2.3.2 Limits . 33
4.2.3.2.1 E-UTRA limits . 33
4.2.3.2.2 UTRA FDD limits . 35
4.2.3.2.3 UTRA TDD limits . 35
4.2.3.2.4 Cumulative ACLR requirement in non-contiguous spectrum . 35
4.2.3.2.5 NB-IoT test requirement . 36
4.2.3.3 Conformance . 37
4.2.4 Transmitter spurious emis sions . 37
4.2.4.1 Definition . 37
4.2.4.2 Limits . 37
4.2.4.2.1 Spurious emissions . 37
4.2.4.2.2 Additional spurious emissions requirement for BC2 . 38
4.2.4.2.3 Co-existence with other systems . 38
4.2.4.2.4 Protection of the BS receiver of own or different BS . 40
4.2.4.3 Conformance . 40
4.2.5 Base station maximum output power . 40
4.2.5.1 Definition . 40
4.2.5.2 Limits . 41
4.2.5.3 Conformance . 41
4.2.6 Transmit intermodulation . 41
4.2.6.1 Definition . 41
4.2.6.2 Limits . 41
4.2.6.2.1 General limits . 41
4.2.6.2.2 Additional limits (BC1 and BC2) . 42
4.2.6.2.3 Additional limits (BC3) . 42
4.2.6.3 Conformance . 43
ETSI

---------------------- Page: 3 ----------------------
4 ETSI EN 301 908-18 V13.1.1 (2019-09)
4.2.7 Receiver spurious emissions . 43
4.2.7.1 Definition . 43
4.2.7.2 Limits . 43
4.2.7.2.1 General limits . 43
4.2.7.2.2 Additional limits for BC2 . 44
4.2.7.3 Conformance . 44
4.2.8 In-band blocking . 44
4.2.8.1 Definition . 44
4.2.8.2 Limits . 45
4.2.8.2.1 General limits . 45
4.2.8.2.2 Additional BC3 blocking limits . 46
4.2.8.3 Conformance . 47
4.2.9 Out-of-band blocking . 47
4.2.9.1 Definition . 47
4.2.9.2 Limits . 47
4.2.9.3 Conformance . 48
4.2.10 Receiver intermodulation characteristics . 48
4.2.10.1 Definition . 48
4.2.10.2 Limits . 48
4.2.10.2.1 General intermodulation limits . 48
4.2.10.2.2 General narrowband intermodulation limits . 50
4.2.10.2.3 Additional narrowband intermodulation limits for GSM/EDGE . 52
4.2.10.3 Conformance . 52
4.2.11 Narrowband blocking . 52
4.2.11.1 Definition . 52
4.2.11.2 Limits . 52
4.2.11.2.1 General limits . 52
4.2.11.2.2 Additional limits for GSM/EDGE . 53
4.2.11.2.3 GSM/EDGE limits for AM suppression . 54
4.2.11.3 Conformance . 54
4.2.12 Reference sensitivity level . 54
4.2.12.1 Definition . 54
4.2.12.2 Limits . 54
4.2.12.3 Conformance . 54
5 Testing for compliance with technical requirements . 54
5.1 Environmental conditions for testing . 54
5.2 Interpretation of the measurement results . 55
5.3 Essential radio test suites . 55
5.3.0 Introduction. 55
5.3.1 Operating band unwanted emissions . 55
5.3.1.0 General . 55
5.3.1.1 Initial conditions . 56
5.3.1.2 Procedure . 56
5.3.1.3 Test requirement . 56
5.3.2 Adjacent Channel Leakage power Ratio (ACLR) . 57
5.3.2.0 General . 57
5.3.2.1 Initial conditions . 57
5.3.2.2 Procedure . 57
5.3.2.3 Test requirement . 58
5.3.3 Transmitter spurious emis sions . 58
5.3.3.1 Initial conditions . 58
5.3.3.2 Procedure . 58
5.3.3.3 Test requirement . 58
5.3.4 Base station maximum output power . 58
5.3.4.1 Initial conditions . 58
5.3.4.2 Procedure . 59
5.3.4.3 Test requirement . 59
5.3.5 Transmit intermodulation . 59
5.3.5.0 General . 59
5.3.5.1 Initial conditions . 59
5.3.5.2 Procedure . 60
ETSI

---------------------- Page: 4 ----------------------
5 ETSI EN 301 908-18 V13.1.1 (2019-09)
5.3.5.2.1 General minimum requirement test procedure . 60
5.3.5.2.2 Additional minimum requirement (BC1 and BC2) test procedure . 60
5.3.5.2.3 Additional minimum requirement (BC3) test procedure . 61
5.3.5.3 Test requirement . 62
5.3.6 Receiver spurious emissions . 62
5.3.6.1 Initial conditions . 62
5.3.6.2 Procedure . 62
5.3.6.3 Test requirement . 62
5.3.7 In-band blocking . 63
5.3.7.1 Initial conditions . 63
5.3.7.2 Procedure . 63
5.3.7.2.1 Procedure for general blocking . 63
5.3.7.2.2 Procedure for additional BC3 blocking requirement . 63
5.3.7.3 Test requirement . 64
5.3.8 Out-of-band blocking . 64
5.3.8.1 Initial conditions . 64
5.3.8.2 Procedure . 64
5.3.8.3 Test requirement . 65
5.3.9 Receiver intermodulation characteristics . 65
5.3.9.1 Initial conditions . 65
5.3.9.2 Procedure . 65
5.3.9.2.1 Procedure for general and narrowband intermodulation . 65
5.3.9.2.2 Procedure for additional narrowband intermodulation for GSM/EDGE . 66
5.3.9.3 Test requirement . 66
5.3.10 Narrowband blocking . 66
5.3.10.1 Initial conditions . 66
5.3.10.2 Procedure . 67
5.3.10.2.1 Procedure for narrowband blocking . 67
5.3.10.2.2 Procedure for additional narrowband blocking for GSM/EDGE . 67
5.3.10.2.3 Procedure for GSM/EDGE AM suppression . 68
5.3.10.3 Test requirement . 69
5.3.11 Reference sensitivity level . 69
5.3.11.1 General . 69
5.3.11.1A Initial conditions for GSM/EDGE reference sensitivity level for CS7 and CS15 . 69
5.3.11.1B Procedure for GSM/EDGE reference sensitivity level for CS7 and CS15 . 69
5.3.11.2 Test requirement . 70
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 71
Annex B (normative): Base Station configurations . 73
B.1 Reception with multiple receiver antenna connectors and receiver diversity . 73
B.2 Duplexers . 73
B.3 Power supply options . 73
B.4 Ancillary RF amplifiers . 73
B.5 BS using antenna arrays . 74
B.5.0 General . 74
B.5.1 Receiver tests . 74
B.5.2 Transmitter tests . 75
B.6 Transmission with multiple transmitter antenna connectors . 75
B.7 BS with integrated Iuant BS modem . 75
Annex C (informative): Recommended maximum measurement uncertainty . 76
Annex D (informative): Bibliography . 78
Annex E (informative): Change history . 79
History . 80

ETSI

---------------------- Page: 5 ----------------------
6 ETSI EN 301 908-18 V13.1.1 (2019-09)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or
...

Final draft ETSI EN 301 908-18 V13.1.0 (2019-07)






HARMONISED EUROPEAN STANDARD
IMT cellular networks;
Harmonised Standard for access to radio spectrum;
Part 18: E-UTRA, UTRA and GSM/EDGE
Multi-Standard Radio (MSR) Base Station (BS)

---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 301 908-18 V13.1.0 (2019-07)



Reference
REN/MSG-TFES-13-18
Keywords
3G, 3GPP, cellular, digital, EDGE, E-UTRA,
GSM, IMT, IMT-2000, IMT-Advanced, LTE,
mobile, MSR, radio, regulation, UMTS, UTRA,
WCDMA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2019.
All rights reserved.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and
of the oneM2M Partners.
®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 Final draft ETSI EN 301 908-18 V13.1.0 (2019-07)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 10
3.1 Terms . 10
3.2 Symbols . 13
3.3 Abbreviations . 14
4 Technical requirements specifications . 15
4.1 Environmental profile . 15
4.2 Conformance requirements . 15
4.2.1 Introduction. 15
4.2.2 Operating band unwanted emissions . 21
4.2.2.1 Definition . 21
4.2.2.2 Limits . 21
4.2.2.2.1 Limits for Band Categories 1 and 3 . 21
4.2.2.2.2 Limits for Band Category 2 . 27
4.2.2.2.3 Limits for GSM/EDGE single-RAT operation . 32
4.2.2.2.4 Additional limits for protection of DTT . 33
4.2.2.2.5 Limits for co-existence with services in adjacent frequency bands . 33
4.2.2.2.6 Additional limits for operation in band 32 . 33
4.2.2.3 Conformance . 33
4.2.3 Adjacent Channel Leakage power Ratio (ACLR) . 33
4.2.3.1 Definition . 33
4.2.3.2 Limits . 33
4.2.3.2.1 E-UTRA limits . 33
4.2.3.2.2 UTRA FDD limits . 35
4.2.3.2.3 UTRA TDD limits . 35
4.2.3.2.4 Cumulative ACLR requirement in non-contiguous spectrum . 35
4.2.3.2.5 NB-IoT test requirement . 36
4.2.3.3 Conformance . 37
4.2.4 Transmitter spurious emis sions . 37
4.2.4.1 Definition . 37
4.2.4.2 Limits . 37
4.2.4.2.1 Spurious emissions . 37
4.2.4.2.2 Additional spurious emissions requirement for BC2 . 38
4.2.4.2.3 Co-existence with other systems . 38
4.2.4.2.4 Protection of the BS receiver of own or different BS . 40
4.2.4.3 Conformance . 40
4.2.5 Base station maximum output power . 40
4.2.5.1 Definition . 40
4.2.5.2 Limits . 41
4.2.5.3 Conformance . 41
4.2.6 Transmit intermodulation . 41
4.2.6.1 Definition . 41
4.2.6.2 Limits . 41
4.2.6.2.1 General limits . 41
4.2.6.2.2 Additional limits (BC1 and BC2) . 42
4.2.6.2.3 Additional limits (BC3) . 42
4.2.6.3 Conformance . 43
ETSI

---------------------- Page: 3 ----------------------
4 Final draft ETSI EN 301 908-18 V13.1.0 (2019-07)
4.2.7 Receiver spurious emissions . 43
4.2.7.1 Definition . 43
4.2.7.2 Limits . 43
4.2.7.2.1 General limits . 43
4.2.7.2.2 Additional limits for BC2 . 44
4.2.7.3 Conformance . 44
4.2.8 In-band blocking . 44
4.2.8.1 Definition . 44
4.2.8.2 Limits . 45
4.2.8.2.1 General limits . 45
4.2.8.2.2 Additional BC3 blocking limits . 46
4.2.8.3 Conformance . 47
4.2.9 Out-of-band blocking . 47
4.2.9.1 Definition . 47
4.2.9.2 Limits . 47
4.2.9.3 Conformance . 48
4.2.10 Receiver intermodulation characteristics . 48
4.2.10.1 Definition . 48
4.2.10.2 Limits . 48
4.2.10.2.1 General intermodulation limits . 48
4.2.10.2.2 General narrowband intermodulation limits . 50
4.2.10.2.3 Additional narrowband intermodulation limits for GSM/EDGE . 52
4.2.10.3 Conformance . 52
4.2.11 Narrowband blocking . 52
4.2.11.1 Definition . 52
4.2.11.2 Limits . 52
4.2.11.2.1 General limits . 52
4.2.11.2.2 Additional limits for GSM/EDGE . 53
4.2.11.2.3 GSM/EDGE limits for AM suppression . 54
4.2.11.3 Conformance . 54
4.2.12 Reference sensitivity level . 54
4.2.12.1 Definition . 54
4.2.12.2 Limits . 54
4.2.12.3 Conformance . 54
5 Testing for compliance with technical requirements . 54
5.1 Environmental conditions for testing . 54
5.2 Interpretation of the measurement results . 55
5.3 Essential radio test suites . 55
5.3.0 Introduction. 55
5.3.1 Operating band unwanted emissions . 55
5.3.1.0 General . 55
5.3.1.1 Initial conditions . 56
5.3.1.2 Procedure . 56
5.3.1.3 Test requirement . 56
5.3.2 Adjacent Channel Leakage power Ratio (ACLR) . 57
5.3.2.0 General . 57
5.3.2.1 Initial conditions . 57
5.3.2.2 Procedure . 57
5.3.2.3 Test requirement . 58
5.3.3 Transmitter spurious emis sions . 58
5.3.3.1 Initial conditions . 58
5.3.3.2 Procedure . 58
5.3.3.3 Test requirement . 58
5.3.4 Base station maximum output power . 58
5.3.4.1 Initial conditions . 58
5.3.4.2 Procedure . 59
5.3.4.3 Test requirement . 59
5.3.5 Transmit intermodulation . 59
5.3.5.0 General . 59
5.3.5.1 Initial conditions . 59
5.3.5.2 Procedure . 60
ETSI

---------------------- Page: 4 ----------------------
5 Final draft ETSI EN 301 908-18 V13.1.0 (2019-07)
5.3.5.2.1 General minimum requirement test procedure . 60
5.3.5.2.2 Additional minimum requirement (BC1 and BC2) test procedure . 60
5.3.5.2.3 Additional minimum requirement (BC3) test procedure . 61
5.3.5.3 Test requirement . 62
5.3.6 Receiver spurious emissions . 62
5.3.6.1 Initial conditions . 62
5.3.6.2 Procedure . 62
5.3.6.3 Test requirement . 62
5.3.7 In-band blocking . 63
5.3.7.1 Initial conditions . 63
5.3.7.2 Procedure . 63
5.3.7.2.1 Procedure for general blocking . 63
5.3.7.2.2 Procedure for additional BC3 blocking requirement . 63
5.3.7.3 Test requirement . 64
5.3.8 Out-of-band blocking . 64
5.3.8.1 Initial conditions . 64
5.3.8.2 Procedure . 64
5.3.8.3 Test requirement . 65
5.3.9 Receiver intermodulation characteristics . 65
5.3.9.1 Initial conditions . 65
5.3.9.2 Procedure . 65
5.3.9.2.1 Procedure for general and narrowband intermodulation . 65
5.3.9.2.2 Procedure for additional narrowband intermodulation for GSM/EDGE . 66
5.3.9.3 Test requirement . 66
5.3.10 Narrowband blocking . 66
5.3.10.1 Initial conditions . 66
5.3.10.2 Procedure . 67
5.3.10.2.1 Procedure for narrowband blocking . 67
5.3.10.2.2 Procedure for additional narrowband blocking for GSM/EDGE . 67
5.3.10.2.3 Procedure for GSM/EDGE AM suppression . 68
5.3.10.3 Test requirement . 69
5.3.11 Reference sensitivity level . 69
5.3.11.1 General . 69
5.3.11.1A Initial conditions for GSM/EDGE reference sensitivity level for CS7 and CS15 . 69
5.3.11.1B Procedure for GSM/EDGE reference sensitivity level for CS7 and CS15 . 69
5.3.11.2 Test requirement . 70
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 71
Annex B (normative): Base Station configurations . 73
B.1 Reception with multiple receiver antenna connectors and receiver diversity . 73
B.2 Duplexers . 73
B.3 Power supply options . 73
B.4 Ancillary RF amplifiers . 73
B.5 BS using antenna arrays . 74
B.5.0 General . 74
B.5.1 Receiver tests . 74
B.5.2 Transmitter tests . 75
B.6 Transmission with multiple transmitter antenna connectors . 75
B.7 BS with integrated Iuant BS modem . 75
Annex C (informative): Recommended maximum measurement uncertainty . 76
Annex D (informative): Bibliography . 78
Annex E (informative): Change history . 79
History . 80

ETSI

---------------------- Page: 5 ----------------------
6 Final draft ETSI EN 301 908-18 V13.1.0 (2019-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ET
...

SLOVENSKI STANDARD
SIST EN 301 908-18 V13.1.1:2019
01-december-2019
Celična omrežja IMT - Harmonizirani standard za dostop do radijskega spektra -
18. del: Večstandardna (E-UTRA, UTRA in GSM/EDGE) radijska bazna postaja
IMT cellular networks - Harmonised Standard for access to radio spectrum - Part 18: E-
UTRA, UTRA and GSM/EDGE Multi-Standard Radio (MSR) Base Station (BS)
Ta slovenski standard je istoveten z: ETSI EN 301 908-18 V13.1.1 (2019-09)
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.070.99 Druge mobilne storitve Other mobile services
SIST EN 301 908-18 V13.1.1:2019 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 301 908-18 V13.1.1:2019

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SIST EN 301 908-18 V13.1.1:2019
ETSI EN 301 908-18 V13.1.1 (2019-09)






HARMONISED EUROPEAN STANDARD
IMT cellular networks;
Harmonised Standard for access to radio spectrum;
Part 18: E-UTRA, UTRA and GSM/EDGE
Multi-Standard Radio (MSR) Base Station (BS)

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SIST EN 301 908-18 V13.1.1:2019
 2 ETSI EN 301 908-18 V13.1.1 (2019-09)



Reference
REN/MSG-TFES-13-18
Keywords
3G, 3GPP, cellular, digital, EDGE, E-UTRA,
GSM, IMT, IMT-2000, IMT-Advanced, LTE,
mobile, MSR, radio, regulation, UMTS, UTRA,
WCDMA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2019.
All rights reserved.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and
of the oneM2M Partners.
®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

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SIST EN 301 908-18 V13.1.1:2019
 3 ETSI EN 301 908-18 V13.1.1 (2019-09)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 10
3.1 Terms . 10
3.2 Symbols . 13
3.3 Abbreviations . 14
4 Technical requirements specifications . 15
4.1 Environmental profile . 15
4.2 Conformance requirements . 15
4.2.1 Introduction. 15
4.2.2 Operating band unwanted emissions . 21
4.2.2.1 Definition . 21
4.2.2.2 Limits . 21
4.2.2.2.1 Limits for Band Categories 1 and 3 . 21
4.2.2.2.2 Limits for Band Category 2 . 27
4.2.2.2.3 Limits for GSM/EDGE single-RAT operation . 32
4.2.2.2.4 Additional limits for protection of DTT . 33
4.2.2.2.5 Limits for co-existence with services in adjacent frequency bands . 33
4.2.2.2.6 Additional limits for operation in band 32 . 33
4.2.2.3 Conformance . 33
4.2.3 Adjacent Channel Leakage power Ratio (ACLR) . 33
4.2.3.1 Definition . 33
4.2.3.2 Limits . 33
4.2.3.2.1 E-UTRA limits . 33
4.2.3.2.2 UTRA FDD limits . 35
4.2.3.2.3 UTRA TDD limits . 35
4.2.3.2.4 Cumulative ACLR requirement in non-contiguous spectrum . 35
4.2.3.2.5 NB-IoT test requirement . 36
4.2.3.3 Conformance . 37
4.2.4 Transmitter spurious emis sions . 37
4.2.4.1 Definition . 37
4.2.4.2 Limits . 37
4.2.4.2.1 Spurious emissions . 37
4.2.4.2.2 Additional spurious emissions requirement for BC2 . 38
4.2.4.2.3 Co-existence with other systems . 38
4.2.4.2.4 Protection of the BS receiver of own or different BS . 40
4.2.4.3 Conformance . 40
4.2.5 Base station maximum output power . 40
4.2.5.1 Definition . 40
4.2.5.2 Limits . 41
4.2.5.3 Conformance . 41
4.2.6 Transmit intermodulation . 41
4.2.6.1 Definition . 41
4.2.6.2 Limits . 41
4.2.6.2.1 General limits . 41
4.2.6.2.2 Additional limits (BC1 and BC2) . 42
4.2.6.2.3 Additional limits (BC3) . 42
4.2.6.3 Conformance . 43
ETSI

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SIST EN 301 908-18 V13.1.1:2019
 4 ETSI EN 301 908-18 V13.1.1 (2019-09)
4.2.7 Receiver spurious emissions . 43
4.2.7.1 Definition . 43
4.2.7.2 Limits . 43
4.2.7.2.1 General limits . 43
4.2.7.2.2 Additional limits for BC2 . 44
4.2.7.3 Conformance . 44
4.2.8 In-band blocking . 44
4.2.8.1 Definition . 44
4.2.8.2 Limits . 45
4.2.8.2.1 General limits . 45
4.2.8.2.2 Additional BC3 blocking limits . 46
4.2.8.3 Conformance . 47
4.2.9 Out-of-band blocking . 47
4.2.9.1 Definition . 47
4.2.9.2 Limits . 47
4.2.9.3 Conformance . 48
4.2.10 Receiver intermodulation characteristics . 48
4.2.10.1 Definition . 48
4.2.10.2 Limits . 48
4.2.10.2.1 General intermodulation limits . 48
4.2.10.2.2 General narrowband intermodulation limits . 50
4.2.10.2.3 Additional narrowband intermodulation limits for GSM/EDGE . 52
4.2.10.3 Conformance . 52
4.2.11 Narrowband blocking . 52
4.2.11.1 Definition . 52
4.2.11.2 Limits . 52
4.2.11.2.1 General limits . 52
4.2.11.2.2 Additional limits for GSM/EDGE . 53
4.2.11.2.3 GSM/EDGE limits for AM suppression . 54
4.2.11.3 Conformance . 54
4.2.12 Reference sensitivity level . 54
4.2.12.1 Definition . 54
4.2.12.2 Limits . 54
4.2.12.3 Conformance . 54
5 Testing for compliance with technical requirements . 54
5.1 Environmental conditions for testing . 54
5.2 Interpretation of the measurement results . 55
5.3 Essential radio test suites . 55
5.3.0 Introduction. 55
5.3.1 Operating band unwanted emissions . 55
5.3.1.0 General . 55
5.3.1.1 Initial conditions . 56
5.3.1.2 Procedure . 56
5.3.1.3 Test requirement . 56
5.3.2 Adjacent Channel Leakage power Ratio (ACLR) . 57
5.3.2.0 General . 57
5.3.2.1 Initial conditions . 57
5.3.2.2 Procedure . 57
5.3.2.3 Test requirement . 58
5.3.3 Transmitter spurious emis sions . 58
5.3.3.1 Initial conditions . 58
5.3.3.2 Procedure . 58
5.3.3.3 Test requirement . 58
5.3.4 Base station maximum output power . 58
5.3.4.1 Initial conditions . 58
5.3.4.2 Procedure . 59
5.3.4.3 Test requirement . 59
5.3.5 Transmit intermodulation . 59
5.3.5.0 General . 59
5.3.5.1 Initial conditions . 59
5.3.5.2 Procedure . 60
ETSI

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SIST EN 301 908-18 V13.1.1:2019
 5 ETSI EN 301 908-18 V13.1.1 (2019-09)
5.3.5.2.1 General minimum requirement test procedure . 60
5.3.5.2.2 Additional minimum requirement (BC1 and BC2) test procedure . 60
5.3.5.2.3 Additional minimum requirement (BC3) test procedure . 61
5.3.5.3 Test requirement . 62
5.3.6 Receiver spurious emissions . 62
5.3.6.1 Initial conditions . 62
5.3.6.2 Procedure . 62
5.3.6.3 Test requirement . 62
5.3.7 In-band blocking . 63
5.3.7.1 Initial conditions . 63
5.3.7.2 Procedure . 63
5.3.7.2.1 Procedure for general blocking . 63
5.3.7.2.2 Procedure for additional BC3 blocking requirement . 63
5.3.7.3 Test requirement . 64
5.3.8 Out-of-band blocking . 64
5.3.8.1 Initial conditions . 64
5.3.8.2 Procedure . 64
5.3.8.3 Test requirement . 65
5.3.9 Receiver intermodulation characteristics . 65
5.3.9.1 Initial conditions . 65
5.3.9.2 Procedure . 65
5.3.9.2.1 Procedure for general and narrowband intermodulation . 65
5.3.9.2.2 Procedure for additional narrowband intermodulation for GSM/EDGE . 66
5.3.9.3 Test requirement . 66
5.3.10 Narrowband blocking . 66
5.3.10.1 Initial conditions . 66
5.3.10.2 Procedure . 67
5.3.10.2.1 Procedure for narrowband blocking . 67
5.3.10.2.2 Procedure for additional narrowband blocking for GSM/EDGE . 67
5.3.10.2.3 Procedure for GSM/EDGE AM suppression . 68
5.3.10.3 Test requirement . 69
5.3.11 Reference sensitivity level . 69
5.3.11.1 General . 69
5.3.11.1A Initial conditions for GSM/EDGE reference sensitivity level for CS7 and CS15 . 69
5.3.11.1B Procedure for GSM/EDGE reference sensitivity level for CS7 and CS15 . 69
5.3.11.2 Test requirement . 70
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 71
Annex B (normative): Base Station configurations . 73
B.1 Reception with multiple receiver antenna connectors and receiver diversity . 73
B.2 Duplexers . 73
B.3 Power supply options . 73
B.4 Ancillary RF amplifiers . 73
B.5 BS using antenna arrays . 74
B.5.0 General . 74
B.5.1 Receiver tests . 74
B.5.2 Transmitter tests . 75
B.6 Transmission with multiple transmitter antenna connectors . 75
B.7 BS with integrated Iuant BS modem . 75
Annex C (informative): Recommended maximum measurement uncertainty . 76
Annex D (informative): Bibliography . 78
Annex E (informative): Change history . 79
History .
...

Draft ETSI EN 301 908-18 V13.0.1 (2017-12)






HARMONISED EUROPEAN STANDARD
IMT cellular networks;
Harmonised Standard for access to radio spectrum;
Part 18: E-UTRA, UTRA and GSM/EDGE
Multi-Standard Radio (MSR) Base Station (BS)

---------------------- Page: 1 ----------------------
2 Draft ETSI EN 301 908-18 V13.0.1 (2017-12)



Reference
REN/MSG-TFES-13-18
Keywords
3G, 3GPP, cellular, digital, EDGE, E-UTRA,
GSM, IMT, IMT-2000, IMT-Advanced, LTE,
mobile, MSR, radio, regulation, UMTS, UTRA,
WCDMA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2017.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
GSM® and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 Draft ETSI EN 301 908-18 V13.0.1 (2017-12)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
Introduction . 8
1 Scope . 9
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 11
3 Definitions, symbols and abbreviations . 11
3.1 Definitions . 11
3.2 Symbols . 14
3.3 Abbreviations . 15
4 Technical requirements specifications . 16
4.1 Environmental profile . 16
4.2 Conformance requirements . 16
4.2.1 Introduction. 16
4.2.2 Operating band unwanted emissions . 22
4.2.2.1 Definition . 22
4.2.2.2 Limits . 22
4.2.2.2.1 Limits for Band Categories 1 and 3 . 22
4.2.2.2.2 Limits for Band Category 2 . 28
4.2.2.2.3 Limits for GSM/EDGE single-RAT operation . 33
4.2.2.2.4 Limits for protection of DTT . 34
4.2.2.2.5 Limits for co-existence with services in adjacent frequency bands . 34
4.2.2.2.6 Limits for operation in band 32 . 34
4.2.2.3 Conformance . 35
4.2.3 Adjacent Channel Leakage power Ratio (ACLR) . 35
4.2.3.1 Definition . 35
4.2.3.2 Limits . 35
4.2.3.2.1 E-UTRA limits . 35
4.2.3.2.2 UTRA FDD limits . 37
4.2.3.2.3 UTRA TDD limits . 37
4.2.3.2.4 Cumulative ACLR requirement in non-contiguous spectrum . 37
4.2.3.2.5 NB-IoT test requirement . 38
4.2.3.3 Conformance . 39
4.2.4 Transmitter spurious emis sions . 39
4.2.4.1 Definition . 39
4.2.4.2 Limits . 39
4.2.4.2.1 Spurious emissions . 39
4.2.4.2.2 Additional spurious emissions requirement for BC2 . 40
4.2.4.2.3 Co-existence with other systems . 40
4.2.4.2.4 Protection of the BS receiver of own or different BS . 42
4.2.4.3 Conformance . 42
4.2.5 Base station maximum output power . 43
4.2.5.1 Definition . 43
4.2.5.2 Limits . 43
4.2.5.3 Conformance . 43
4.2.6 Transmit intermodulation . 43
4.2.6.1 Definition . 43
4.2.6.2 Limits . 44
4.2.6.2.1 General limits . 44
4.2.6.2.2 Additional limits (BC1 and BC2) . 44
4.2.6.2.3 Additional limits (BC3) . 45
4.2.6.3 Conformance . 45
ETSI

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4 Draft ETSI EN 301 908-18 V13.0.1 (2017-12)
4.2.7 Receiver spurious emissions . 45
4.2.7.1 Definition . 45
4.2.7.2 Limits . 46
4.2.7.2.1 General limits . 46
4.2.7.2.2 Additional limits for BC2 . 46
4.2.7.3 Conformance . 46
4.2.8 In-band blocking . 47
4.2.8.1 Definition . 47
4.2.8.2 Limits . 47
4.2.8.2.1 General limits . 47
4.2.8.2.2 Additional BC3 blocking limits . 48
4.2.8.3 Conformance . 49
4.2.9 Out-of-band blocking . 49
4.2.9.1 Definition . 49
4.2.9.2 Limits . 49
4.2.9.3 Conformance . 50
4.2.10 Receiver intermodulation characteristics . 50
4.2.10.1 Definition . 50
4.2.10.2 Limits . 50
4.2.10.2.1 General intermodulation limits . 50
4.2.10.2.2 General narrowband intermodulation limits . 52
4.2.10.2.3 Additional narrowband intermodulation limits for GSM/EDGE . 53
4.2.10.3 Conformance . 53
4.2.11 Narrowband blocking . 54
4.2.11.1 Definition . 54
4.2.11.2 Limits . 54
4.2.11.2.1 General limits . 54
4.2.11.2.2 Additional limits for GSM/EDGE . 55
4.2.11.2.3 GSM/EDGE limits for AM suppression . 55
4.2.11.3 Conformance . 55
4.2.12 Reference sensitivity level . 56
4.2.12.1 Definition . 56
4.2.12.2 Limits . 56
4.2.12.3 Conformance . 56
5 Testing for compliance with technical requirements . 56
5.1 Environmental conditions for testing . 56
5.2 Interpretation of the measurement results . 56
5.3 Essential radio test suites . 58
5.3.0 Introduction. 58
5.3.1 Operating band unwanted emissions . 58
5.3.1.0 General . 58
5.3.1.1 Initial conditions . 59
5.3.1.2 Procedure . 59
5.3.1.3 Test requirement . 59
5.3.2 Adjacent Channel Leakage power Ratio (ACLR) . 60
5.3.2.0 General . 60
5.3.2.1 Initial conditions . 60
5.3.2.2 Procedure . 60
5.3.2.3 Test requirement . 61
5.3.3 Transmitter spurious emis sions . 61
5.3.3.1 Initial conditions . 61
5.3.3.2 Procedure . 61
5.3.3.3 Test requirement . 61
5.3.4 Base station maximum output power . 61
5.3.4.1 Initial conditions . 61
5.3.4.2 Procedure . 62
5.3.4.3 Test requirement . 62
5.3.5 Transmit intermodulation . 62
5.3.5.0 General . 62
5.3.5.1 Initial conditions . 62
5.3.5.2 Procedure . 63
ETSI

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5 Draft ETSI EN 301 908-18 V13.0.1 (2017-12)
5.3.5.2.1 General minimum requirement test procedure . 63
5.3.5.2.2 Additional minimum requirement (BC1 and BC2) test procedure . 63
5.3.5.2.3 Additional minimum requirement (BC3) test procedure . 64
5.3.5.3 Test requirement . 65
5.3.6 Receiver spurious emissions . 65
5.3.6.1 Initial conditions . 65
5.3.6.2 Procedure . 65
5.3.6.3 Test requirement . 65
5.3.7 In-band blocking . 66
5.3.7.1 Initial conditions . 66
5.3.7.2 Procedure . 66
5.3.7.2.1 Procedure for general blocking . 66
5.3.7.2.2 Procedure for additional BC3 blocking requirement . 66
5.3.7.3 Test requirement . 67
5.3.8 Out-of-band blocking . 67
5.3.8.1 Initial conditions . 67
5.3.8.2 Procedure . 67
5.3.8.3 Test requirement . 68
5.3.9 Receiver intermodulation characteristics . 68
5.3.9.1 Initial conditions . 68
5.3.9.2 Procedure . 68
5.3.9.2.1 Procedure for general and narrowband intermodulation . 68
5.3.9.2.2 Procedure for additional narrowband intermodulation for GSM/EDGE . 69
5.3.9.3 Test requirement . 69
5.3.10 Narrowband blocking . 69
5.3.10.1 Initial conditions . 69
5.3.10.2 Procedure . 70
5.3.10.2.1 Procedure for narrowband blocking . 70
5.3.10.2.2 Procedure for additional narrowband blocking for GSM/EDGE . 70
5.3.10.2.3 Procedure for GSM/EDGE AM suppression . 71
5.3.10.3 Test requirement . 72
5.3.11 Reference sensitivity level . 72
5.3.11.1 General . 72
5.3.11.1A Initial conditions for GSM/EDGE reference sensitivity level for CS7 and CS15 . 72
5.3.11.1B Procedure for GSM/EDGE reference sensitivity level for CS7 and CS15 . 72
5.3.11.2 Test requirement . 73
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 74
Annex B (normative): Base Station configurations . 76
B.1 Reception with multiple receiver antenna connectors and receiver diversity . 76
B.2 Duplexers . 76
B.3 Power supply options . 76
B.4 Ancillary RF amplifiers . 76
B.5 BS using antenna arrays . 77
B.5.0 General . 77
B.5.1 Receiver tests . 77
B.5.2 Transmitter tests . 78
B.6 Transmission with multiple transmitter antenna connectors . 78
B.7 BS with integrated Iuant BS modem . 78
Annex C (informative): Environmental profile specification . 79
Annex D (informative): Bibliography . 80
Annex E (informative): Change history . 81
ETSI

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6 Draft ETSI EN 301 908-18 V13.0.1 (2017-12)
History . 82

ETSI

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7 Draft ETSI EN 301 908-18 V13.0.1 (2017-12)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by E
...

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